nappy
n
(Brit infml 口) (also fml 文作 napkin) (US diaper) piece of towelling cloth or similar soft padding folded round a baby's bottom and between its legs to absorb or hold its urine and excreta 尿布
a disposable nappy, ie one that is made to be thrown away after being used once 一次性尿布(用後即弃的).
On the occasions when they have pushed to shore an unconscious human being they have much more likely done it out of curiosity or for sport, as in riding the bow waves of a ship.